What is sharpness of resonance?

Obtain the resonant frequency and Q-factor of a series LCR circuit ith L = 3.0 H, C = 27 muF , and R = 7.4 Omega . It is desired to improve the sharpness of the resonance of the circuit by reducing its ‘full width at half maximum’ by a factor of 2. Suggest a suitable way.

Derive an expression for impedance of an a.c. circuit with an induct L, capacitor C and a resistor R in series. What is condition of resonance?

Define resonance.

Derive the expression for the impedance of an a.c. circuit with an inductor ‘L’, capacitor ‘C’ and a resistor ‘R’ in series. What iscondition of resonance ?

What is a sereis resonant circuit? Derive an expression for resonance frequency.

What is the condition of resonance?